Wrench.



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elttoumg State of Wisconsin, have invented certain UNITED STATES PATENTOFFICE.

OLE STENERSON, OF SUPERIOR, WISCONSIN.

WRENCH.

Specification of Letters Patent. Patented Sept, 20, 1910, Applicationfiled June 8, 1910. Serial No. 565,803.

I The handle 10 is adapted to be rotated on. the cylindrical portion ofthe shank 5 with relation to the s iding jaw 8, but the lip 12, as willbe observed, prevents relative lon itudinal movement of the jaw and thehandle upon said shank. The outer face of the shank 5 in its rectangularportion is pro- To all whom it may concern:

that I, OLE Srnnnnson, a citizen of the United States, residing atSuperior, in the county of Douglas and new and useful Improvements in\Vrenches, of which the following is a specification, reference beinghad to the accompanying drawvided with a longitudinal groove 13. in s.To the adjacent face of the sliding aw 8 a resilient bar 14 f the screws15. entirely through the side of the sliding aw and into thelongitudinal groove 13 of the wrench shank. This screw acts as a guidefor the jaw in its sliding movement and also limits such movement of thejaw. The re- -This invention relates to an improved is secured by means0 wrench and more particularly to a wrench of the quick adjusting typeof very simple and novel construction whereby the sliding wrench jaw maybe adjusted upon the shank to securely grip the nut, the head of thebolt orthe like.

A further object of the invention resides in the provision of a wrenchcomprising a shank having a stationary head formed on its end and asliding jaw arranged on the shank, means being carried by the handleco-acting with the shank to lock said jaw in its adjusted position.

With these and other objects in view, the invention consists of thenovel features of construction and the combination and arrangement ofparts hereinafter fully described and claimed, and illustrated in theaccompanying drawings, in which- Figure 1 is a perspective view of awrench constructed in accordance with the present invention; Fig. 2 is alongitudinal section through the sliding jaw and the handle;

' the line 3-3 of jaw 8 and has its extremity 14' laterally disposed andextended into the annular groove 11 of the handle. The body of thehandle at the base of said groove is formed at diaor recesses 16 whichreceive the rounded end of the laterally disposed extremity 1 1 of theresilient bar. This resilient bar yieldingly holds the handle againstturning movement on the wrench shank when the sliding jaw is in a lockedor released condition. The manner of locking the jaw 8 after the samehas been adjusted is very simple and renders the wrench extremely quickin its action. This locking means will now be described in detail.

The cylindrical portion 7 of the shank 5 has formed thereon a segmentalscrew thread 17. These threads are disposed upon the same side of theshank as the stationary jaw 6 and are adapted to co-act with similarsegmental threads 18 which are formed in one end of the tubular handle10. The bore of said handle at its threaded end is of oval crosssectional form, the threads 18 thereof being cut into the body of thehandle. Thus when the handle is turned upon the shank, the threads 17will be disposed in that portion of the bore of the handle which extendsbeyond a line indicating a true circle, as shown at A in Fig. 8. Whenthe threads 17 are so arranged in the handle, it will be obvious thatthe wrench shank may be moved longitudinally through the jaw 8 and thehandle 10, or the shank held stationary by grasping the jaw 6 and themovable jaw 8 and handle 10 moved thereon. This sliding movement islimited by the engagement of the screw 15 in the end of the groove 13 inFig. 3 1s a section taken on Fig. 2.

Referring more particularly to the drawings 5 indicates the shank of thewrench, and 6 the stationary head formed thereon. The greater portion ofthe wrench shank is cvlindrically formed, as shown at 7, the portion ofsaid shank adjacent to the jaw 6 being of rectangular cross sectionalform to be received in the similarly shaped openin of the sliding jaw 8.The opposed faces 0 the stationary jaw and the sliding jaw at one sideof the shank 5 are formed with the transverse grooves 9 which areprovided with the teeth or serrations, as shown, for gripping engagementwith a rod, pipe or other cylindrical object.

A hollow handle 10 receives the cylindrical portion 7 of the wrenchshank and has formed upon one end thereof an annular groove or channel11. This groove receives a lip or extension 12 formed upon the end ofthe sliding jaw 8 at one side thereof.

silient bar 14: extends beyond the end of the metrically opposite pointswith the notches V One of these screws extends 970,762 the shank, thegroove 13 being of such length effectually prevented. It will beunderstood as to allow the segmental teeth 17 and 18 to be engaged tolock the jaw 8 on the shank when the screw is at the end of said groove.When the jaw has thus been re- I the end 14 of the resilient bar 14 isdisposed in one of the the groove 11. been moved to its desired hehandle is rotated the end thereof receive the threads 17 on thecylindrical portion 7 of the'sha'nk, thus locking the jaw againstfurfore require a half the handle to properly engage the threads thereinwith those on the shank. of the notches 16 will thus be moved intoposition to receive the end 14 of the bar 14 the bar 14 efi'ectua lyovercomes any liability of the jaw and handle being separated, said barbeing of sufiicient tension to prevent the movement of the end portionthereof entirely out of the groove 11.

From the have provided foregoing it will be seen that I j that anydesired number of the threads 17 and 18 may be provided, and that thewrench jaws may also be of other forms than that shown in the drawings.The device may be manufactured at a comparatively low cost and isextremely durable and efficient in practical operation.

While I have set forth the preferred construction of my improved wrench,it will be obvious that the same is susceptible of a t1on.

Having-thus described the invention what is claimed iss- I a wrench thecombination of a shank a a a having a stationary aw gular in cross shankbeing cylindrically tangular shank portion having a longitudinal slot inits outer face, a sliding jaw on said shank, a handle rotatable on thecylindrical portion of the shank, means connecting the sliding'jaw andthe handle, means formed on the cylindrical shank portion and the handlefor locking engagement to secure the jaw in its adjusted position, areyieldingly held against rotation,

movement of said jaw.

In testimony whereof I hereunto afliX my signature 1n the presence oftwo witnesses.

OLE STENERSON.

Witnesses:

F. B. MORGAN, J. L. JoHNsoN.

